CN1617915A - High dry substance Stein Hall adhesive and method for preparing high dry substance Stein Hall adhesive - Google Patents
High dry substance Stein Hall adhesive and method for preparing high dry substance Stein Hall adhesive Download PDFInfo
- Publication number
- CN1617915A CN1617915A CNA028276043A CN02827604A CN1617915A CN 1617915 A CN1617915 A CN 1617915A CN A028276043 A CNA028276043 A CN A028276043A CN 02827604 A CN02827604 A CN 02827604A CN 1617915 A CN1617915 A CN 1617915A
- Authority
- CN
- China
- Prior art keywords
- starch
- tackiness agent
- alkali
- carrier part
- high dry
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J103/00—Adhesives based on starch, amylose or amylopectin or on their derivatives or degradation products
- C09J103/02—Starch; Degradation products thereof, e.g. dextrin
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2666/00—Composition of polymers characterized by a further compound in the blend, being organic macromolecular compounds, natural resins, waxes or and bituminous materials, non-macromolecular organic substances, inorganic substances or characterized by their function in the composition
- C08L2666/02—Organic macromolecular compounds, natural resins, waxes or and bituminous materials
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2666/00—Composition of polymers characterized by a further compound in the blend, being organic macromolecular compounds, natural resins, waxes or and bituminous materials, non-macromolecular organic substances, inorganic substances or characterized by their function in the composition
- C08L2666/54—Inorganic substances
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Adhesives Or Adhesive Processes (AREA)
Abstract
The invention relates to a method for preparing a high dry substance Stein Hall adhesive, comprising the steps preparing a carrier portion by gelatinising at least a part of the total starch in the adhesive in an alkaline medium, diluting the carrier portion with a volume of water; and adding the maining secundary starch in which in a first step said carrier portion is prepared, in a second step the carrier portion is diluted with a volume of water, followed by the addition of at least a portion of the secondary starch, and in a third step the remaining alkali is added in a diluted form together with the secondary starch. The addition of the remaining secondary starch and alkali is preferably performed stepwise.
Description
The present invention relates to the preparation method of a kind of high dry Stein Hall (Si Tanhuo) tackiness agent, the method comprising the steps of:
-make carrier part by at least a portion gelation in alkaline medium that makes the total starch in the tackiness agent;
-with a certain amount of water (a volume of water) carrier part is diluted; With
-adding residue secondary (secundary) starch.
The invention still further relates to a kind of high dry Stein Hall tackiness agent (also claiming high density Stein Hall tackiness agent or glue).
The starch-based glue stick is well-known in corrugated panel industry, and among the tackiness agent that uses, Stein Hall type tackiness agent is to popularize the most.
Usually Stein Hall tackiness agent is called as the carrier part that comprises tackiness agent, and it makes by 10～20% gelations that utilize caustic soda to make to be about the starch total amount in the tackiness agent.With the paste cooling and the dilute with water of gained, add remaining starch then then as natural granular starch.Also add borax (1.5～2.5%).
In these cases, Zong maximum starch concentration is no more than 25% in these Stein Hall type prescriptions, this value can reach 30～37% on the dry basis although be reported in.When by reduction carrier viscosity such as oxidizing reactions, can obtain these higher values.
The shortcoming of these lower concentration tackiness agent is: water content is higher, the drying that reduces adhesion speed and hinder tack coat in the adhesion step.In addition, higher dry tackiness agent is because the water yield that need evaporate is less, thereby the energy that causes consuming reduces.
Subsequently, wish in glue, to have higher starch concentration.But same well-known is that when using starch as tackiness agent, there is the highest limit in spendable amount of starch.Under higher amount of starch, water shortage is to guarantee needed adhesive power, and the viscosity of tackiness agent becomes too high simultaneously.
High density starch-based glue stick is described in the prior art.Described the starch-based glue stick and partly be made up of the starch part and the part swollen starch of complete gelation in EP0038627, ratio is between 0.2: 100 and 2: 1 here.This tackiness agent can contain 10～40% dry weight starch solids.Gelation part can be by heat-treating acquisition under 95 ℃ or higher temperature, and without as in traditional Stein Hall prescription, mix with high alkali liquid.In fact, the starch after the gelation is partly joined in the no-load build tackiness agent, can improve the wet viscosity of tackiness agent.
The binder composition that comprises 15～35 weight % starch solids is disclosed in EP0576221.Quite a large amount of starch part swellings (preferably between 20～50%).
Described a kind of tackiness agent among the EP0376301, it is by making to obtain gelation suspension handling farinaceous size between 120～200 ℃ of the temperature in the steam pressurized reactor.The starch that in this gelation suspension, adds not gelation then.As shown in example, total starch solids content changes between 32～40% in prescription.Described in this application tackiness agent does not belong to typical Stein Hall composition.
In EP1101809, high dry starch-based glue stick has been described, it contains at least 40%, preferably at least 46% dry.By add inorganic salt in the starch-based glue stick, preferred lime carbonate is realized high dry matter content.The ratio of this starch/filler preferably was at least 60: 40.This tackiness agent is Stein Hall, no-load build or Minocar type.
In EP0409240, a kind of high density starch slurry tackiness agent has been described, it comprises the starch solids of 20～60 weight %.For example xanthan gum or sandlwood carbohydrate gum (rhamsan) and a little sodium hydroxide can be stablized this tackiness agent by adding natural gum.
Disclose high dry adhesive compound in WO9850478, it contains a large amount of water miscible alkaline silicates and starch, borax and sodium hydroxide.Disclosing content in an embodiment can be up to 45% solid adhesive compound.
The above-mentioned prior art document of quoting of part does not relate to Stein Hall type tackiness agent, for example EP0038627, EP0576221, EP0376301 and EP0409240.
Other two documents of quoting, promptly EP1101809 and WO9850478 may comprise Stein Hall type tackiness agent, but in fact they are different from standard recipe, because they include the inorganic filler material that helps make high dry tackiness agent.
In the art, other high dry Stein Hall type tackiness agent is disclosed.
At US3, the tackiness agent of a kind of content up to the high dry Stein Hall type of 40 weight % of starch solids disclosed in 912,531.
Yet the shortcoming of this high dry Stein Hall tackiness agent is that it is to be that 25～90 fluidity starches is realized as carrier starch or as part carrier starch by using mobility.
EP0049009 also discloses high dry Stein Hall type tackiness agent.The problem that this patent documentation is emphasized is how to make final high DS tackiness agent, and its medium viscosity can not increase fast, but thereby still pumping of mixture.In fact this tackiness agent must demonstrate certain package stability and have spendable viscosity.
In this patent documentation, the technology of having narrated with traditional preparation Stein Hall type tackiness agent (it has low dry) can't obtain high dry tackiness agent.As mentioned above, the preparation method of this class Stein Hall type tackiness agent comprises the preparation carrier and after this by reducing alkalescence it is diluted.When not reducing alkalescence, will influence the adding of secondary starch, thereby cause grain expansion and viscosity instability.
Yet if must prepare high dry tackiness agent, dilution will be not enough to stop undesirable swelling.In addition, will cause can not composition processed for the mixture of a small amount of diluted carrier and high secondary starch enriched material.
The terms of settlement of this problem has been proposed in application EP0 049 009, this method comprises the oxidation carrier part, in the presence of the sodium hydroxide of requirement, already oxidised starch is carried out gelation then, make the viscosity of carrier be reduced to the value of the secondary starch that can add needs thus.Add this secondary starch then, so that reach the 40%d.s. tackiness agent.Should be emphasized that in this tackiness agent carrier starch partly is illustrated in to exist in the tackiness agent is higher than 14% starch dry.
The shortcoming of this method is to obtain high dry tackiness agent must use the starch that reduces viscosity in carrier part.
The starch of the reduction viscosity that relates in the patent documentation of state of the art generally is fluidity starches or oxidized starch, and wherein fluidity starches decomposes acquisition through chemistry or enzyme.
The purpose of this invention is to provide a kind of preparation method of high dry Stein Hall tackiness agent, this method does not demonstrate the above-mentioned shortcoming of mentioning.
This purpose is to realize that by the preparation method that a kind of high dry Stein Hall tackiness agent is provided the method comprising the steps of:
-make carrier part by at least a portion gelation in alkaline medium that makes the total starch in the tackiness agent;
-with a certain amount of water carrier part is diluted; With
-add remaining secondary starch.
Wherein, the described carrier part of preparation in the first step with a certain amount of water dilution carrier part, be added to the small part secondary starch then, and the form with dilution adds remaining alkali and secondary starch in the 3rd step in second step.
In according to the preferred method of the present invention, the adding of remaining secondary starch and alkali is a proceed step by step.
The advantage that this method has is that secondary starch can directly not be subjected to the effect of the alkali of excessive concentrations, thereby prevents starch swelling prematurely.
In preferred method according to the present invention, with at least two step adding alkali and starch.
In concrete grammar according to the present invention, in the first step, starch is mixed together with water and alkali lye, the starch gel gel up to all makes carrier part, and it contains 2～9% of total amount of starch.
In more concrete method according to the present invention, in the first step, alkali content is less than 2/3 of in adhesive formulation required total amount usually in carrier part.
In another concrete grammar according to the present invention, in second step, carrier part is diluted with a certain amount of water of 60～85% that is equivalent to carrier bulk.
In more concrete method according to the present invention, in second step, add 50～75% secondary starch.
In according to the preferred method of the present invention, after the 3rd step, add borax.
The advantage of this method is to improve tack, and the seepage force of control water-retentivity and tackiness agent.
Purpose of the present invention also can realize by a kind of high dry Stein Hall tackiness agent is provided, thus:
-it contains 32～45% ative starch or stabilizing starch;
The ratio of-carrier starch and secondary starch is between 1: 50 and 1: 11;
-its Bauer viscosity is between 21 seconds (s)～60 second; With
-alkali concn is enough to provide 45～53 ℃ SGP in tackiness agent.
In preferred high dry Stein Hall tackiness agent according to the present invention, ative starch or stabilizing starch are to be obtained by cereal, stem tuber or root starch.
The method for preparing tackiness agent of the present invention comprises the step of several successive:
By starch is mixed together with water and alkali, the starch gel gel up to all makes carrier part in the first step, and it contains 2～9% of total amount of starch.Alkali content in the carrier part is less than 2/3 of in adhesive formulation required total amount usually;
In next step, carrier part is diluted, add at least half and 75% secondary starch at the most then with a certain amount of water of 60～85% that is equivalent to carrier bulk.
Form with dilution adds remaining alkali and remaining secondary starch again in another step.
Adding remaining starch and alkali can while or proceed step by step.Add fashionablely when simultaneously, care should be used to avoids starch directly to be subjected to the effect of alkali.
In the substep adition process, at first alkali is joined in the first step and next step the mixture, add remaining secondary starch then.Preferably with two the step or more multistep add alkali and starch step by step.Add borax at last and make tackiness agent.
High dry Stein Hall type tackiness agent according to the present invention has following character:
They contain 32～45% ative starch or stabilizing starch,
The ratio of carrier starch and secondary starch between 1: 50 and 1: 11,
Their Bauer viscosity is between 21 seconds～60 seconds,
And alkali concn is enough to provide 45～53 ℃ SGP in tackiness agent.
Ative starch or stabilizing starch can obtain from cereal, stem tuber or root starch.Its typical example is for example from corn, wheat, barley, potato, cassava or arrowroot, comprises the starch that wax and senior amylose starch type starch obtain.The stabilizing starch that relates in this application is equivalent to by physics and/or chemically treated starch, and purpose is that the starch that obtains is not vulnerable to the influence of alkali under envrionment temperature or high slightly temperature.As its result, generation swelling and/or gelation that starch can be not too early.
Advantage according to high dry Stein Hall tackiness agent of the present invention and preparation method of the present invention thereof is needn't use the starch that has reduced viscosity at carrier part, and corresponding tackiness agent still demonstrates fabulous package stability and spendable viscosity.This tackiness agent only contains ative starch or stabilizing starch.In addition, obtained final pumpable high dry tackiness agent.
The present invention now is illustrated by following examples, and following embodiment should not be counted as expressed in the claim and limit the scope of the invention.
Embodiment 1
A kind of preparation of high dry tackiness agent, as follows:
At first in 2000 liters container, prepare carrier part.For this reason, the NaOH solution with 16 liters 30%w/w is mixed in the suspension that contains stable wheat starch of 28kg and 650 premium on currency.Mixture was stirred 10 minutes under 1500rpm with the high speed shear stirrer, make the starch gel gel.Contents of starch is 3.25% (ratio 1: 30) of total amount of starch in the tackiness agent in carrier part.
In next step, in carrier wheat starch stable and 3kg borax, add 550 liters of tap water together with 500kg.Under 1500rpm, integral body was mixed restir 5 minutes.
Before remaining alkali of adding and starch, at first dilute the NaOH solution of remaining 12 liters of 30%w/w with 100 premium on currency.
In container, add the alkali lye of 37 liters of dilutions then, then add the stable wheat starch of 200kg.Before 37 liters of alkali lye that adds the secondary amount and 138kg starch, this mixture was stirred 5 minutes.Again with the mixture vigorous stirring.At last, when stirring this tackiness agent, add remaining 38 liters of alkali lye and 6.5kg borax.
Zhi Bei adhesive formulation comprises the starch solids of 40 weight % like this, and composed as follows:
Water: 1300 liters
Starch: 866kg
Volume: 1820 liters
NaOH：???6.25g/l
Borax: 5.21g/l
The tackiness agent that makes like this demonstrates following character:
| After the preparation immediately | After 30 minutes | After 6 hours | |
| Bauer (second) Brookfield (mPas, 20rpm) | ????22 ????480 | ????25 ????500 | ????27 ????710 |
SGP：47℃
Embodiment 2
The tackiness agent of Miao Shuing contains the W-Gum solid of 40 weight % in this embodiment.In 1500 liters of containers, the 24kg W-Gum is scattered in 440 premium on currency.In this suspension, add the NaOH solution of the 33%w/w of 12kg, this mixture was stirred 12 minutes under 1500rpm with the high speed shear stirrer.Contents of starch is 4.2% (ratio 1: 24) of total amount of starch in the tackiness agent in carrier part.
In next step, add 320 premium on currency, 4.5kg borax successively, vigorous stirring 3 minutes.In carrier part, add 300kg starch then, stir by remix under 1500rpm and made the starch homodisperse in 3 minutes.Before adding remaining alkali and starch, other alkali lye part (NaOH of 10kg33%) is diluted with 100 premium on currency.
In container, add the alkali lye of 37 liters of dilutions like this, add the stable W-Gum of 151kg subsequently, under 1500rpm, stirred 3 minutes.Then, with the alkali of secondary amount, subsequently 100kg starch is added and disperse.Under agitation add remaining 35 liters of alkali lye and 4kg borax at last.
The adhesive formulation that makes like this comprises the starch solids of 40 weight %, and composed as follows:
Water: 860 liters
Starch: 575kg
Volume: 1200 liters
NaOH：???6.25g/l
Borax: 6.25g/l
The tackiness agent that makes like this demonstrates following character:
| After the preparation immediately | |
| Bauer viscosity (second) | ????48 |
| ????Brookfield(mPas，20rpm) | ????1600 |
SGP：48.5℃
Claims (10)
1. the preparation method of high dry Stein Hall tackiness agent comprises step:
-make carrier part by at least a portion gelation in alkaline medium that makes the total starch in the tackiness agent;
-with a certain amount of water carrier part is diluted; And
-add remaining secondary starch,
It is characterized in that the described carrier part of preparation in the first step, in second step, dilute this carrier part, be added to the small part secondary starch subsequently, and the form with dilution adds remaining alkali and secondary starch in the 3rd step with a certain amount of water.
2. according to the method for claim 1, the adding that it is characterized in that remaining secondary starch and alkali lye is a proceed step by step.
3. according to the method for claim 2, it is characterized in that adding alkali and starch with at least two steps.
4. according to each method among the claim 1-2, it is characterized in that in the first step that starch is mixed together with water and alkali, and the starch gel gel up to all makes carrier part, this carrier part contains 2～9% of total amount of starch.
5. according to each method in the claim 1～4, it is characterized in that in the first step that the alkali content in the carrier part is less than 2/3 of in adhesive formulation required total amount usually.
6. according to each method in the claim 1～5, it is characterized in that in second step carrier part being diluted with a certain amount of water of 60～85% that is equivalent to carrier bulk.
7. according to each method in the claim 1～6, it is characterized in that in second step, adding 50～75% secondary starch.
8. according to the method for one of above-mentioned steps, it is characterized in that after the 3rd step, adding borax.
9. high dry Stein Hall tackiness agent is characterized in that
-it contains 32～45% ative starch or stabilizing starch;
The ratio of-carrier starch and secondary starch is between 1: 50 and 1: 11;
-its Bauer viscosity is between 21 seconds～60 seconds; With
-alkali concn is enough to provide 45～53 ℃ SGP in tackiness agent.
10. according to the high dry Stein Hall tackiness agent of claim 9, it is characterized in that ative starch or stabilizing starch are to be obtained by cereal, stem tuber or root starch.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/EP2002/000975 WO2003064553A1 (en) | 2002-01-30 | 2002-01-30 | High dry substance stein hall adhesives and method for preparing high dry substance stein hall adhesives |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1617915A true CN1617915A (en) | 2005-05-18 |
Family
ID=27635748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA028276043A Pending CN1617915A (en) | 2002-01-30 | 2002-01-30 | High dry substance Stein Hall adhesive and method for preparing high dry substance Stein Hall adhesive |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US7087108B2 (en) |
| EP (1) | EP1470202B1 (en) |
| CN (1) | CN1617915A (en) |
| CA (1) | CA2470618C (en) |
| CZ (1) | CZ2004800A3 (en) |
| DE (1) | DE60211382T2 (en) |
| ES (1) | ES2263775T3 (en) |
| HU (1) | HUP0402642A2 (en) |
| SK (1) | SK286695B6 (en) |
| UA (1) | UA78730C2 (en) |
| WO (1) | WO2003064553A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5111812B2 (en) * | 2005-09-16 | 2013-01-09 | 株式会社リコー | Composition, composition manufacturing method, heat-sensitive adhesive material, and information recording material |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2102937A (en) * | 1935-07-26 | 1937-12-21 | Stein Hall Mfg Co | Plyboard adhesive |
| GB1571336A (en) | 1977-04-06 | 1980-07-16 | Cpc Ltd | Starch-based adhesive composition |
| FR2569354B1 (en) * | 1984-08-24 | 1987-03-27 | Roquette Freres | STARCH GLUE PREPARATION PLANT |
| US5000788A (en) * | 1990-04-12 | 1991-03-19 | Sprout-Bauer, Inc. | Method for preparing starch based corrugating adhesives using waste wash water |
| US6048391A (en) * | 1996-09-27 | 2000-04-11 | Serco Holland | Means for and methods of preparing a glue for corrugated board |
| US20040102546A1 (en) * | 2002-11-22 | 2004-05-27 | Roman Skuratowicz | Corrugating adhesives for bonding coated papers and methods for bonding coated papers |
-
2002
- 2002-01-30 CA CA002470618A patent/CA2470618C/en not_active Expired - Fee Related
- 2002-01-30 WO PCT/EP2002/000975 patent/WO2003064553A1/en not_active Application Discontinuation
- 2002-01-30 EP EP02716704A patent/EP1470202B1/en not_active Expired - Lifetime
- 2002-01-30 SK SK251-2004A patent/SK286695B6/en not_active IP Right Cessation
- 2002-01-30 CZ CZ2004800A patent/CZ2004800A3/en unknown
- 2002-01-30 DE DE60211382T patent/DE60211382T2/en not_active Expired - Fee Related
- 2002-01-30 US US10/503,068 patent/US7087108B2/en not_active Expired - Fee Related
- 2002-01-30 UA UA20040604780A patent/UA78730C2/en unknown
- 2002-01-30 CN CNA028276043A patent/CN1617915A/en active Pending
- 2002-01-30 ES ES02716704T patent/ES2263775T3/en not_active Expired - Lifetime
- 2002-01-30 HU HU0402642A patent/HUP0402642A2/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| UA78730C2 (en) | 2007-04-25 |
| CZ2004800A3 (en) | 2004-11-10 |
| SK286695B6 (en) | 2009-03-05 |
| CA2470618C (en) | 2009-09-29 |
| EP1470202B1 (en) | 2006-05-10 |
| DE60211382D1 (en) | 2006-06-14 |
| HUP0402642A2 (en) | 2005-03-29 |
| SK2512004A3 (en) | 2004-11-03 |
| US7087108B2 (en) | 2006-08-08 |
| WO2003064553A1 (en) | 2003-08-07 |
| DE60211382T2 (en) | 2006-09-07 |
| EP1470202A1 (en) | 2004-10-27 |
| ES2263775T3 (en) | 2006-12-16 |
| US20050072333A1 (en) | 2005-04-07 |
| CA2470618A1 (en) | 2003-08-07 |
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